You can calculate values using the #set directive in Cheetah. I wondered
how to format those values for output, and after some testing I found the
following solution. As an example the daylight duration is calculated from
sunrise and sunset times:
#from weewx.units import ValueTuple,ValueHelper
#set $rising=$almanac.sun.rise.raw
#set $setting=$almanac.sun.set.raw
#set $daylight=$setting-$rising
#set
$daylight_vh=ValueHelper(ValueTuple($daylight,'second','group_deltatime'),formatter=$station.formatter)
$daylight_vh.format("%(hour)d%(hour_label) %(minute)d%(minute_label)s
%(second)d%(second_label)s","").
Is there a better solution?
In skins I see this calculated "by hand" in a series of #set statements.
Is it explained somewhere in the manuals?
--
You received this message because you are subscribed to the Google Groups
"weewx-user" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/weewx-user/59d5b12b-9083-4cb3-8270-b5d99c337245n%40googlegroups.com.
